Rim tool



Patented Aug. 26,' 1930 i aimee [JULIUS e. GORDON, or SEATTLE,,.wasnnveffroiil 1 RIM Toor. Y

- Application filed December 1a; 192?. Asemi Nopznoozffi My inventionrelates to improvements in rim tools for contracting and exnanding splitrimsV and for holding the'saine contracted and.

the generalobject of my invention is to prosgvide a. simple andeilicienttool by which a split rim may be quickly7 and easily'contractedand held contracted to facilitate removing and applying a pneumatic tireto the rim, and, by which' the rim may be expanded after a 210 tire hasbeen placed thereon.

Another object is to provide a rim tool I having novel and ciiicicntmeans lor breaking or displacing the two abutting ends of a split rimpreparatory to contracting the same.

A 'further object 1s to provide a rim tool embodying a novel combinationof levers and novel clamp means Jfor grippingthe edge of ail split rimand to provide'a rim tool that is adjustable to rims of different size.

l Other and more specific objects will beV ap, parent from the followingdescription taken in connection with the accompanying drawy ings. v f lIn the drawings Fig. 1, is a View in'eleva.- tion showing my vrim toolappliedtov a split rim preparatory to contracting the same, a part onlyof the rim being shown. i

Fig. 2 is a similar View showing the rim 'fully contracted. n l f f fFig. Sis another elevation showing the tool in the act offexpanding therim., a portion of the main operating lever being broken away. Fig. 4 isa detached edge'view of the tool.

' scale of onev o1' the rim clamps.

Fig. Gis a somewhat diagrammaticelevation on a smaller .scale showingthe tool applied in a different manner for displacing or replacing thetwo ends of a split rim.

Fig. is a section showinga clamp engaging a rnn.

Like reference numerals designate like j parts throughout the severalviews.

Referring to the drawings, l1 show a tool H embodying a lever 10 and alink 11 both prei:-

erably formed of relativelyy strong flat metal, and disposed latwise oneagainst the other and interconnected by a pivot 12 which is positionedat the end of the link 11 and a short distance from the endet the leverILOe A rim Fig. 5, is a detached plan view on a larger breaking bar ispivotally and 'adjustably connected with thelink 11,by a stud pin '14which islocated afshort distance from the' pivot y12 and passes throughany selected one of a plurality of holes 15 -in the rim breaking barl.'A"l iool:e16,y Figx 4, ispro'vided on they end' of the r im breakingbar 18. A hook 17 lis lalso provided on theyouter,l or handle end, 'ofthejleverlO. f

Two-'rim clamps Voifduplicate construction are infovided in connectionwith the tool, one

of saidc'lamps beinglconnectedby a pivotl 18 with the endfof theilevcr10 ashort distance fromthefpivot 12, and the otherfrim clamp beingconnected by a pivot 19 withthe link 11l near the end remote fromjtheypivot 12. The 'rim clamps each compriseda short flat metal bar 720'lhaving one end pivotedy on one of the above mentioned pivots 18 or '19and havingl a hook 21 formed' on the other end. A clamp plate 22r ofv'greaterwidth than the bar 2O is secured to said bar bya pivot Rim.engagingV formed at the c elements or points"k 24C1are o-rners of theclamp plate v22 adjacent the hook, thejedge of the platekbetween .thepoints 24! being cnt back towardthe pivot 23, as more clearly shown inFig. 5.` The rea-r nedge of the clamp plate 22 is recessed at 25 toafford clearance for an enlarged head or stud "26 on 'the pivot 18 or19and to leave .D

two'lugsV 27 on tlie'clampplate for engaging with opposite s ides ofthe'hea-d 26 to limit the amount of pivotal movement of the plate dottedylines in `22 relative to the bar 20, as shown by full and Fig.` 5.'This insures a. positive clamping engagement with aprim and keeps thecla1np plate always approximately in4 place.

For contracting a split rim 28 of the 'form commonly used tires the toolV1s in connection with pneumatic applied to the rim, as showninjlligfl,1 y yhooking .thev clamp hooks 21.

over said 'rim at about'equal ydistances ony each side of the split 29wherev the two ends of therim abutV said split 29'.

against eachother and by en,-`

gaging the hook `16 of the rim breaking mem-v e f ber 13 with one y Whenthe tool is thus yapplied end of said yrim, 28 yadjacent thelever 10kand llink 11 will be substantially parallelr with. t

he lever 1Q ,en Vthe aubade..

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The lever 10 is then moved to the left as indicated by the arrow in Fig.1, to first tight* en the clamp on the out turned flange 30 at the outeredge of said rim, then to cause the rim breaking member 13 to exert adownward pull on one end ot said rim, moving said tWo abutting ends intorelatively offset relation and causing them to slip past each other,after which the lever 1() may be moved into the position shown in Fig.2, to fully contract the rim, and the hook 17 on the end of said lever10 may then be hooked over the edge of the rim to hold said rimcontracted, as, for instance While a tire .is being taken oli' andreplaced by another or repaired and put back on. After a tire has beenplaced on the contracted rim the tool is released, allowing the rim toexpand as much as it willand the clamp on the end oi the lever 1()adjusted closer to the split end of the rim with the levers in theposition shown in Fig. 3. After this is done the lever 10 is moved tothe right as indicated by the arrow, fully expanding the rim andpermitting the ends to snap into abutting relation. This completes theWork and thc tool maybe removed. The rim is usually provided With means,indicated by 31 for locking the two split ends together.

The clamps are strong and sin'iple in construction and are easy to alixto, or disengage from a rim. Said clamps are positive and elicient intheir operation, will grip the rim tightly in any position and Will notslip on the rim.

In Fig. G I have shown the tool applied to a rim il@ with the hook 17 ofthe lever 19 hooked over one end of said rim near the split 29 and theend 32 ol" the lever 11 abutting squarely againstthe other end of saidrim on the other side of the split 29. lVhen the tool is thus applied itmay be used as a lever to displace the ends of the rim or to bring saidends into correct alignment in an obvious manner.

The tool is simple in construction, not expensive to nninufacture,reliable and etlicient in operation, easy and quick to manipulate :andcapable ot being' folded into a very co|npact forni when not in use.

The foregoing description and accompanyingr drawings clearly disclose apreferred embodiment ot in v invention but it will he understood thatthis disclosure is merely illustrative and that such changes in theinvention may be made as are fairly ivitl 'n the scope and spirit of thefollowing claim.

I claim:

ln a riin tool, a lever, a rim clamp connected with the inner endthereof, a link having one end pivoted to the lever a short distance`from the point of connection of the rim clamp, another rim clampconnected with the free end of said link and a rim breaking barpivotally and adjustably connected with the link a short distance fromthe pivoted end thereof and having a hook on its outer end adapted toengage with the end of a split rim adjacent the split.

The foregoing specification signed at Seattle, Wrasli., this 15th day ofDec. 1927.

JULIUS G. GORDON.

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